[jira] [Commented] (SPARK-21187) Complete support for remaining Spark data types in Arrow Converters

["Li Jin (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SPARK-21187?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16257142#comment-16257142 ] 

Li Jin commented on SPARK-21187:
--------------------------------

[~bryanc], the only type left is Decimal and that depends on Arrow 0.8 release, is that right?

> Complete support for remaining Spark data types in Arrow Converters
> -------------------------------------------------------------------
>
>                 Key: SPARK-21187
>                 URL: https://issues.apache.org/jira/browse/SPARK-21187
>             Project: Spark
>          Issue Type: Umbrella
>          Components: PySpark, SQL
>    Affects Versions: 2.3.0
>            Reporter: Bryan Cutler
>
> This is to track adding the remaining type support in Arrow Converters.  Currently, only primitive data types are supported.  '
> Remaining types:
> * -*Date*-
> * -*Timestamp*-
> * *Complex*: Struct, Array, Map
> * *Decimal*
> Some things to do before closing this out:
> * Look to upgrading to Arrow 0.7 for better Decimal support (can now write values as BigDecimal)
> * Need to add some user docs
> * Make sure Python tests are thorough
> * Check into complex type support mentioned in comments by [~leif], should we support mulit-indexing?



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